Frontend Engineering

⏱ 3 min read By 2026 component documentation has matured significantly. Storybook 8 is the dominant tool; Ladle is a lighter-weight alternative; AI-assisted documentation Read article

⏱ 3 min read “Build a form builder” or “build a dynamic forms engine” is a senior+ frontend interview that probes whether you can Read article

⏱ 3 min read Frontend performance is one of the easiest things to claim and one of the hardest things to maintain. Performance budgets, Read article

⏱ 3 min read “Build a range slider” is a frontend machine-coding question that punishes assumptions. The native <input type=”range”> works for simple cases Read article

⏱ 3 min read Internationalization is one of those topics where senior engineers are expected to know more than the basics. By 2026 the Read article

⏱ 3 min read The cookie and storage landscape changed a lot between 2020 and 2026. Third-party cookie deprecation hit in stages; SameSite defaults Read article

⏱ 3 min read “Design GitHub’s repo page” is a senior+ frontend system-design prompt. The page combines a file tree, code viewer with syntax Read article

⏱ 3 min read The settings page is the part of every product that grows the fastest and gets the least design attention. Senior Read article

⏱ 4 min read The acronyms keep multiplying: SSR, CSR, SSG, ISR, RSC, PPR, DSC. Senior frontend interviews probe whether you can articulate which Read article

⏱ 3 min read “Build an avatar upload” is a classic frontend machine-coding question that looks simple until you implement it. The hard parts: Read article

⏱ 3 min read “Build a GitHub-style activity heatmap” is a frontend interview prompt that combines calendar math, data binning, color scaling, hover/focus interactions, Read article

⏱ 10 min read Frontend testing matured considerably between 2020 and 2026. Vitest replaced Jest for most modern projects; Playwright is the dominant E2E Read article

⏱ 3 min read “Design Linear” is a senior+ frontend system-design prompt that captures the modern SaaS-app shape — fast keyboard-driven UI, offline-first sync, Read article

⏱ 3 min read “Build a bottom sheet” is a mobile-web frontend question that punishes shortcuts. Apple Maps, Apple Music, Slack iOS, Linear iOS Read article